Phospholipid makes the plasma membrane of cells
Answer: True
Explanation: Ion channels are very specific and are voltage gated channels. They are highly specific and selective for particular ions only.
Example: Some of the channels allow the flow of potassium ions but do not allow sodium ions to cross the membrane to maintain the concentration.
Some of the positive ion channels allow only the movement of positive ions and no negative ions. These channels are not always open and opens only when there is a concentration gradient.
Answer:
D). DNA degrading enzymes
Explanation:
As per the question, the 'DNA degrading enzymes' is the treatment that has obstructed the S cell extract's potential to convert into R cells. The enzyme called 'deoxyribonuclease' functions to produce hydrolytic breakup that leads to the degradation of the DNA. It <u>promotes the 'joining of the nucleotides to form the appropriate pairs by degenerating the molecules of the DNA that has pyrimidine dimers</u>.' Thus, this is the reason due to which S cell is devalued before being transformed into the S cell as this DNase enzyme focuses on developing a new tract of efficient and correctly joined nucleotides. Hence, <u>option D</u> is the correct answer.
The correct option is A.
Mitochondria is one of the organelles that are found in living cells and it is the one responsible for the production of ATP, which is the source of energy that is usable by the cells. Mitochondria is designed in such a way that, it will be able to carry out its functions efficiently. Mitochondrial has two membranes, one at the outside and the other one at the inside. While the outer membrane is smooth, the inner one is highly folded and it formed a structure called cristae. The folding of the inner membrane serves to increase the surface area inside the mitochondria.
